420748651460

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{9013}}^1\times {\mathrm{7603}}^1$

素因数の和:16932

約数の個数: 48

約数和(自身を含む): 886665210816

約数和(自身を除く): 465916559356

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 1228, 1535, 3070, 6140, 7603, 9013, 15206, 18026, 30412, 36052, 38015, 45065, 76030, 90130, 152060, 180260, 2334121, 2766991, 4668242, 5533982, 9336484, 11067964, 11670605, 13834955, 23341210, 27669910, 46682420, 55339820, 68525839, 137051678, 274103356, 342629195, 685258390, 1370516780, 21037432573, 42074865146, 84149730292, 105187162865, 210374325730, 420748651460]

約数ペア:

[(1, 420748651460), (2, 210374325730), (4, 105187162865), (5, 84149730292), (10, 42074865146), (20, 21037432573), (307, 1370516780), (614, 685258390), (1228, 342629195), (1535, 274103356), (3070, 137051678), (6140, 68525839), (7603, 55339820), (9013, 46682420), (15206, 27669910), (18026, 23341210), (30412, 13834955), (36052, 11670605), (38015, 11067964), (45065, 9336484), (76030, 5533982), (90130, 4668242), (152060, 2766991), (180260, 2334121)]